Society of Glass Technology · [Sheffield] · leaf 452
ad, 16, to blow the parison slightly. The mould, 42,is then opened, and the table, 1, is turned to bring the parison tothe next station. More air is admitted to elongate the parison,the bottom of which is supported by a member, 60, Fig. 20, whichis raised and lowered by a pedal, 65. The shoulder of… … Fig. 19. reheated and allowed to elongate, the amount of elongation beingcontrolled by a member, 77, which is movable vertically by ahand-lever, 90. After heating, a mould, 76, is raised by a hand-lever, 88, and encloses the lower part of the parison, which is thengiven a first moulding. The…
Glass
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